Lexicon MPX 500 User Manual
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Lexicon MPX 500 User Manual

24-bit dual channel processor
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MPX 500
24-Bit Dual Channel Processor

User Guide

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Summary of Contents for Lexicon MPX 500

  • Page 1: User Guide

    MPX 500 24-Bit Dual Channel Processor User Guide...
  • Page 2 Le présent appareil numérique de la classe B respecte toutes les exigences du Règlement sur le materiel brouiller du Canada. Lexicon Inc. 3 Oak Park Bedford MA 01730-1441 Telephone 781-280-0300 Copyright 1999, Lexicon Inc. Fax 781-280-0490 All Rights Reserved. www.lexicon.com Lexicon Part No. 070-14116...

  • Page 3: Table Of Contents

    15 Flange-Delay ............39 Audio Connections • Footswitch 16 Pitch-Delay ............... 39 Basic Operation 17 Chorus-Delay ............40 The MPX 500 Display ............7 18 Delay-Reverb ............40 Selecting and Loading Programs ........8 19 Flange-Reverb ............41 Editing ................9 20 Pitch-Reverb .............

  • Page 4: Getting Started

    Other features include a software-selectable MIDI OUT/THRU port, pushbutton or footswitch selection of dry or muted audio output and a built-in power supply. To make sure you get the most out of the MPX 500, be sure to read the manual.

  • Page 5: Front Panel Overview

    LED lights to indicate another activates MIDI Learn.) but not stored. eters, routing information, tempo rate. program is cued. EDIT PROGRAM MPX 500 24-Bit Dual Channel Processor Power Input Trim Edit Pages Load 3rd4th-Room 146bpm(p) Edited –...

  • Page 6: Setting Audio Levels

    The Input Trim control allows the MPX 500 to be driven by an input level in the range of +20dBu to +8dBu. The minimum setting (fully counterclockwise) should be optimal for +4dBu (balanced) inputs.

  • Page 7: Rear Panel Connections

    Audio Connections The MPX 500 produces effects from either mono or stereo sources. With mono sources, the dry signal appears, along with audio effects, at both outputs. For instruments and sources with stereo outputs, use both inputs.
  • Page 8 The MPX 500 can be used as two independent Effects Processors with the Dual Programs. Designate two auxiliary sends on your console and connect one to the left MPX 500 input, and the other to the right input. Refer to the Program Descriptions to take advantage of this configuration.
  • Page 9 Getting Started Lexicon...

  • Page 10: Basic Operation

    Basic Operation Basic Operation The MPX 500 Display The MPX 500 Program Select display shows detailed program information, including routing, the current tempo setting, a full page of as many as four editable parameter settings, and real-time input level meters.

  • Page 11: Selecting And Loading Programs

    Lexicon Selecting and Loading Programs MPX 500 programs are organized into 24 Banks plus a User Bank. (The programs are described in detail later in this manual.) When powered on, the unit will display and load the last program used.

  • Page 12: Editing

    Basic Operation Editing Each MPX 500 program has as many as 16 editable parameters, organized into edit "pages" of as many as four parameters each. The front panel Edit Pages button cycles through all of the available pages for the current program.
  • Page 13 . You can set a global tempo for all of the MPX 500 programs, or have each program stored with its own tempo. (See System Mode. ) The global (g) or Program (p) system parameter selection is shown to the right of the tempo display.

  • Page 14: Audio Tap

    That’s your tempo. No more dialing up what “could be” the delay time in milliseconds — just tap twice — the MPX 500 will figure out the time for you. When you want to change tempo, just tap twice again in the new rhythm.

  • Page 15: Bypass

    Learn these messages and allow you to set tempo via MIDI. The MPX 500 can also receive and utilize MIDI Clock. So, when used with a MIDI sequencer or drum machine, the MPX 500 automatically adjusts its internal tempo to match. (See MIDI Operation .)

  • Page 16: Storing Programs

    When you want to save a program, press Store. The Store and the Tap/Cancel LEDs will light to indicate that the MPX 500 store function is armed. (If you want to exit without saving the current program, press Tap/Cancel at any time before completing the store operation.) The first available location in the User Bank will be selected by default when Store is pressed.
  • Page 17 Basic Operation Lexicon...

  • Page 18: System Mode

    MPX 500 User Guide System Mode System Mode System parameters and MIDI dumps are activated in System mode. To enter this mode, press System. The System LED will light to indicate you are in System mode. The adjustable parameters available in this mode are described on the following page. Edit knob 1 will select parameters, edit knob 3 will change the selected parameter's setting.
  • Page 19 System Mode Lexicon System Mode Parameters Parameter Settings Default Setting Output Level 0dB to -24dB, Off Input Source Analog Stereo, Analog Mono L, Analog Stereo Analog Mono R, S/PDIF Digital Clock Source Internal 44.1K, Internal 48K, External (S/PDIF) Internal 44.1K...
  • Page 20 When Dry is selected, Analog In to Digital Out provides an auxiliary A/D converter. Mix Mode Determines whether the current Mix setting of the MPX 500 will be applied to all programs (Global), or whether program-specific Mix levels are restored on each program load.
  • Page 21 Lexicon Tempo Mode Determines whether the current tempo of the MPX 500 will be applied to all programs (Global), or whether program-specific tempos are restored on each program load. NOTE: A default Tempo is stored with each program. These individual stored tempos will take effect if Tempo Mode is set to Program —...
  • Page 22 System Mode Operating Mode Allows the MPX 500 front panel controls to be locked into their current settings, or to be placed in continuous program load cycle for demonstration purposes. When Locked is selected, only the User Bank is available. Program Load Mode is set to Auto Load and only Bypass, Program Select and System modes are available.
  • Page 23 System Mode Lexicon...

  • Page 24: Program Descriptions

    Program Descriptions Program Descriptions The 240 programs in the MPX 500 are designed to provide a full palette of high caliber ambience, reverb, delay, pitch shift and other effects. As you audition the programs, be sure to vary the Adjust parameter.

  • Page 25: Plate

    Program Descriptions Lexicon 1 Plate The Plate programs synthesize the sound of metal plates with high initial diffusion and a relatively bright, colored sound. These programs are designed to be heard as part of the music, mellowing and thickening the initial sound. They are a popular choice for enhancing pop music, particularly percussion.

  • Page 26: Gate

    MPX 500 User Guide Program Descriptions 2 Gate The Gate programs provide a fairly constant sound with no decay until the reverb is cut off abruptly. These programs work well on percussion — particularly on snare and toms, but be sure to experiment with other sound sources as well.

  • Page 27: Hall

    Large Church MidRT – Jazz Hall MidRT – Dance Hall MidRT – Synth Hall MidRT – Concert Hall MidRT – Gothic Hall MidRT – Lexicon's Hall programs recreate the acoustics of actual places, from grand reverberant enclosures to small concert halls.

  • Page 28: Chamber

    MPX 500 User Guide Program Descriptions 4 Chamber The stereo Chamber programs produce even, relatively dimensionless reverberation, with little change in color as the sound decays. The initial diffusion is similar to the Hall programs, but the sense of space and size is much less obvious. This characteristic, along with the low color of the decay tail makes these programs useful on a wide range of material.

  • Page 29: Ambience

    Program Descriptions Lexicon 5 Ambience The Ambience programs simulates reflections from room surfaces with random reflections, a gradual decay of overall level, and a gradual narrowing of the bandwidth. In these programs, the Mix control adds depth — emulating the movement of a coincident pair of microphones from the sound source into the room.

  • Page 30: Rooms

    MPX 500 User Guide Program Descriptions 6 Room The Room programs are very useful on drums and percussion and can also be applied to electric guitar tracks. Room PROGRAMs Adjust Bedroom Walls – Tiled Room LF Boost – Studio "C"...

  • Page 31: Tremolo

    Program Descriptions Lexicon 7 Tremolo The tremolo programs offer a variety of tremolo shapes (square, sawtooth, triangle, sine and rectified sine). The synchronization of the left and right sides can be adjusted to produce mono and stereo effects. As the tremolo rates of several variations are set with Tap, it’s easy to match the tempo of the music.

  • Page 32: Rotary

    MPX 500 User Guide Program Descriptions 8 Rotary The rotary effect is a detailed simulation of a Leslie-style cabinet. The input signal is split into high and low frequency bands. The rotation effect is created by a synchronized combination of pitch shifting, tremolo and panning.

  • Page 33: Chorus

    The stereo Chorus programs uses six independently randomized delay voices panned across the stereo field. These programs, inherited from Lexicon's PCM 80, generate a rich, airy effect that can simulate the sound of multiple sound sources from a single source. These programs are stunning on acoustic or clean electric guitar.

  • Page 34: Flange

    Program Descriptions 10 Flange The MPX 500 stereo Flanger has two 2-tap delays —one per channel. The first tap is fixed, and the second sweeps past it. Mixing the two delay taps together creates the flanging effect. All of these programs should be used with Mix set to fully Wet to achieve the full flange effect.

  • Page 35: Detune

    Program Descriptions Lexicon 11 Detune The 4-voice stereo Detune programs have one pair of voices per channel. As more detune amount is applied (with Adjust), the pair grow more out of tune, providing a lush sound without the need for a dry signal to be mixed in.

  • Page 36: Pitch

    MPX 500 User Guide Program Descriptions 12 Pitch The stereo polyphonic Pitch programs allow complete program material or monophonic sources to be shifted from two octaves down through one octave up. For pitch correction, use these programs with Mix set to fully Wet. For harmonization, use the desired amount of wet/dry Mix.

  • Page 37: Delay, Echo

    Program Descriptions Lexicon 13 Delay, Echo The Delay, Echo variations include mono (5.5 seconds), stereo (2.7 seconds) and 6-voice multitap effects. Each of the programs can be used for digital delay or tape echo effects. When the Adjust parameter (Page 1, Edit knob 1) is set to a value between 63 and 3, tape echo effects are produced.
  • Page 38 MPX 500 User Guide Program Descriptions Delay, Echo PROGRAMs Adjust Dly Mono Tap Feedbk Delay Time DlyStereo Tap Feedbk Delay Time Dly ShuflTap Feedbk Delay Time Dly Dot8 Tap Feedbk Delay Time Dly 8+3plTap Feedbk Delay Time Dly Pong Tap...

  • Page 39: About The Dual Programs

    Program Descriptions Lexicon About the Dual Programs (Banks 14-24) The Dual programs combine either a Delay or Reverb algorithm with a Flange, a Pitch or a Chorus. The Effects Lvl/Bal parameter (Page 1 Edit knob 3) controls the relative balance of each effect in the combination.
  • Page 40 MPX 500 User Guide Program Descriptions Generally, the Effects Lvl/Bal parameter (Page 1, Edit knob 3) controls the balance of the two effects in each dual program. In the cascade variations, rather than simply controlling balance, the knob varies the amount of the first effect or dry signal which is fed into the second effect.

  • Page 41: Special Fx

    Program Descriptions Lexicon 14 Special FX The Special FX programs showcase the flexibility and creative possibilities of the MPX 500. Adjust is completely different in each of the programs, so be sure to experiment with all of them. Special FX PROGRAMs...

  • Page 42: Flange-Delay

    MPX 500 User Guide Program Descriptions 15 Flange – Delay Flange-Delay PROGRAMs Adjust Routing Flng Tap Feedbk Delay Time (1/4 Note) Flng .8Tap Feedbk Dotted 1/8 Note Flange Flng 3plTap Feedbk 1/8 Note Triplet Flng PongTap Feedbk Delay Time (1/4 Note)

  • Page 43: Chorus-Delay

    Program Descriptions Lexicon 17 Chorus– Delay Chorus-Delay PROGRAMs Adjust Routing Chor Tap Feedbk Delay Time Chor .8Tap Feedbk Delay Time Chorus Chor 8+3pl Feedbk Delay Time Chor Pong Feedbk Delay Time Delay Chor Repeat Time – Chor Bounce Time –...

  • Page 44: Flange-Reverb

    MPX 500 User Guide Program Descriptions 19 Flange – Reverb Flange-Reverb PROGRAMs Adjust Routing LiteFl Smal MidRT Speed (Whole Note) LiteFl MidSz MidRT Speed (Whole Note) Flange LiteFl Large MidRT – DeepFl Small MidRT – Reverb DeepFl MidSz MidRT –...

  • Page 45: Chorus-Reverb

    Program Descriptions Lexicon 21 Chorus – Reverb # Chorus-Reverb PROGRAMs Adjust Routing Chor1 Small MidRT – Chor1 MidSiz MidRT – Chorus Chor1 Large MidRT – Chor2 Small MidRT – Reverb Chor2 MidSiz MidRT – Chor2 Large MidRT – Chor1 > Room Livenes –...

  • Page 46: Monosplitdly

    MPX 500 User Guide Program Descriptions 22 MonoSplitDly MonoSplitDly PROGRAMs Adjust Routing Flng+Tap Feedbk 1/4 Note Flng+Pong Feedbk 1/4 Note Flange Flng+Xfeed Time – Delay Flng+Bnce Time – DeepFl+Dly Time – 5th+Tap Pitch Delay Time 8ve+3plTap Pitch Delay Time Pitch...

  • Page 47: Monosplitrvb

    Program Descriptions Lexicon 23 MonoSplitRvb MonoSplitRvb PROGRAMs Adjust Routing Tap+MidSiz MidRT Delay Time Pong+Large MidRT Delay Time Delay Bnce+MidSz MidRT Delay Time Reverb Xfeed+Small MidRT Delay Time Xfeed+MidSiz MidRT Delay Time LiteFL+MidSz MidRT Speed LiteFl+Large MidRT – Flange DeepFl+Small MidRT –...

  • Page 48: Dual Mono

    MPX 500 User Guide Program Descriptions 24 Dual Mono Dual Mono PROGRAMs Adjust Tap | Small MidRT Delay Time Tap | MidSz MidRT Delay Time Tap | Large MidRT Delay Time Tap | Room Livenes Delay Time DeepFl | Tap...
  • Page 49 Program Descriptions Lexicon...

  • Page 50: Midi Operation

    Edit knobs, as well as the Bypass and Tap buttons are supported. As all MPX 500 messages use a single, selectable MIDI Channel, before using any of the MIDI control features, you should go to System Mode and select the MIDI Channel you want to use. (See System Parameters .)

  • Page 51: Using Program Change Messages For Program Load

    Using Program Change Messages for Program Load The MPX 500 will allow loading of all of its preset and User programs via standard MIDI Program Change messages. It also conforms to the use of MIDI controller 32 to perform Bank Select. The MPX 500 banks are ordered numerically from 0-24.

  • Page 52: Learning Continuous Controllers

    Store Tap/Cancel 2. Move one of the MPX 500 front panel controls (Edit Knob 1-4 with any of the four edit pages displayed, Bypass or Tap) to assign it to the controller. (Make sure that the Edit knob you want assigned is displayed before you move its corresponding Edit knob.

  • Page 53: Activating Bypass Or Tap Functions With Program Change Messages

    Learn Bypass Store Tap/Cancel Push for Bank 3. Send a MIDI Program Change to the MPX 500. The display MIDI indicator will come on to indicate incoming MIDI activity. 4. Press Store to commit to the assignment. Learn Store Tap/Cancel...

  • Page 54: Clearing A Learned Assignment

    To aid MIDI controllers (such as some foot controllers) which do not allow repeated Program Change messages to be sent by a single button, the MPX 500 learns the next highest Program Change along with every Program Change message it learns for Bypass and/or Tap. For example, if you Learn Program Change 20 as the source for Bypass, Program Change 21 will also control Bypass functions.

  • Page 55: Midi Clock

    Tap-tempo feature. Connect a MIDI device which outputs MIDI Clock (such as the MPX R1 foot controller or a MIDI sequencer) to the MPX 500 MIDI IN jack, to have the MPX 500 automatically recognize and begin to process the MIDI clocks. When you change tempo on the connected device, the MPX 500 will follow along and adjust its delay times or rates to match the tempo.

  • Page 56: Midi Implementation Chart

    MPX 500 User Guide MIDI Operation MIDI Implementation Lexicon MPX 500 Function Transmitted Recognized Remarks Basic Default Selected in System Mode Channel Channel 1-16 Mode Default Mode 2 Messages Altered Note Number True Voice Velocity Note ON X (Off=9n v=0)
  • Page 57 MIDI Operation Lexicon...

  • Page 58: Specifications

    MPX 500 User Guide Specifications Specifications Digital Audio I/O Audio Inputs Power Requirements Connectors: Coaxial RCA; Connectors: XLR/TRS balanced 90-250V 50-60Hz; 12.5W S/PDIF (IEC-958, CP-340) 3-pin IEC Connector Level: +20 to +8dBu full scale Impedance: 50K bal.; 25K unbal. System Sample Rates...

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